We pursue the investigation started in a recent paper by Millet and Sanz-Solé concerning a non-linear wave equation driven by a Gaussian white noise in time and correlated in the two-dimensional space variable. Under more restrictive conditions on the covariance function of the noise, we prove Hölder-regularity properties for both the solution and its density. For the latter, we adapt the method used in a paper by Morien based on the Malliavin calculus.
@article{hal-00258033,
author = {Millet, Annie and Morien, Pierre-Luc},
title = {On a stochastic wave equation in two space dimension: regularity of the solution and its density},
journal = {HAL},
volume = {2000},
number = {0},
year = {2000},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-00258033}
}
Millet, Annie; Morien, Pierre-Luc. On a stochastic wave equation in two space dimension: regularity of the solution and its density. HAL, Tome 2000 (2000) no. 0, . http://gdmltest.u-ga.fr/item/hal-00258033/